1. A supporter of feminism
   "The libber argued for equal pay in the workplace";
   - feminist, women's rightist, women's liberationist, liberationist
    
2. Some one who supports or advocates liberation of oppressed, enslaved or confined groups of people or animals
   "She was a passionate animal libber, fighting for better treatment of farm animals";
   - liberationist

Derived forms: libbers

Type of: crusader, meliorist, reformer, reformist, social reformer

Part of: feminism, feminist movement, women's lib [informal], women's liberation movement

Encyclopedia: Libber